Comprehensive waterproof aluminum alloy power cable with overload resistance and high temperature resistance

Abstract

The invention discloses a comprehensive waterproof aluminum alloy power cable with overload resistance and high temperature resistance. The comprehensive waterproof aluminum alloy power cable comprises cable inner cores and cable outer layers wrapped outside the cable inner cores, wherein each cable inner core consists of a conducting cable core and an insulating layer of a conductor water blocking layer from inside to outside in sequence; each cable outer layer consists of a wrapping tape, a comprehensive waterproof layer and a protective jacket from inside to outside in sequence, and a water blocking filler is arranged among the cable inner cores; the insulating layer is made of a 150-DEG C halogen-free flame retardant radiation insulating material; each wrapping tape is a high-expansion water blocking wrapping tape with insulation and hygroscopicity; and the protective jacket is made of a thermoplastic protective jacket material. According to the comprehensive waterproof aluminum alloy power cable, the halogen-free flame retardant radiation insulating material is adopted because of insulation; the aluminum alloy power cable has comprehensive waterproof performance, and is resistant to heat and high temperature, large in carrying capacity, high in overload protection capacity, resistant to aging and cracking, high in bending performance, stable in electrical insulation performance, long in service life, free of hydracid gas release during combustion, non-toxic and environment-friendly, and the power cable is self-extinguished when leaving away from fire, so that the emission of toxic and corrosive gas and the generation of smoke can be greatly reduced.

Description

technical field [0001] The invention relates to the field of electric wires and cables, in particular to an aluminum alloy power cable with comprehensive waterproof, overload, high-temperature and high-temperature resistance. Background technique [0002] In the actual operation of power cables, due to the relatively low groundwater level in some areas, groundwater seeps out within less than one meter of excavation, and the cables are immersed in water for a long time. Once the cable sheath is damaged or ruptured, moisture and moisture will seep into the cable, causing water trees in the XLPE insulation. Under long-term voltage, the water trees will cause electrical trees, which will lead to cable breakdown and accidents. The electrical performance of the cable will be affected, and even breakdown and power failure will cause failure. In addition, cables often have to withstand short-term overload and short-circuit current in addition to the continuous rated current carryin...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a comprehensive water-blocking, overload-resistant, high-temperature-resistant aluminum alloy power cable, which effectively solves the problems in the prior art that the cables are not water-blocking, not overload-resistant, easy to generate heat, easy to burn, and burns will produce Toxic gas pollutes the environment, poor bending performance, etc.

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